Multiple expansile enhancing calvarial lesions are identified, in many areas breaching inner table. The largest lesion is in the left frontal parietal region with an total dimensions of 4.6 x 5.2 cm with a 4.6 x 2.1 cm durally based component indenting the left posterior frontal lobe. Another large lesion at the posterior right vertex measures 3.8 x 4.4 cm in axial dimension with either invasion or marked compression of the superior sagittal sinus. These masses are of high T2 signal and demonstrate heterogenous contrast enhancement.